How do I show extensions for known file types?

In Windows Explorer, choose Tools > Folder Options. Click the View tab in the Folder Options dialog box. In Advanced Settings, select Show Hidden Files and Folders. Deselect Hide Extensions for Known File Types.

How do I view unknown file types?

Search the Microsoft Store for an app that can open the unknown file. When Windows asks how you want to open this file, you can click or tap “Look for an app in the Store.” The Microsoft Store opens showing all the apps that can open this file.

How do I find out what file type a file is?

Right-click the file. Select the Properties option. In the Properties window, similar to what is shown below, see the Type of file entry, which is the file type and extension.

How do I show file extensions in Mac?

In the Finder on your Mac, choose Finder > Preferences, then click Advanced. Select or deselect “Show all filename extensions.”

How do I open an unknown file on a Mac?

Open a Mac app from an unidentified developer

1. In the Finder on your Mac, locate the app you want to open. Don’t use Launchpad to do this.
2. Control-click the app icon, then choose Open from the shortcut menu.
3. Click Open.

How do I see file type on Mac?

macOS

1. Open Terminal.
2. In Terminal type “file ” (the word ‘file’ with a space after it)
3. Drag the file you want to determine the file type of onto the Terminal window.
4. The path to the file and its name will appear in the Terminal window.
5. Hit the Return key to see the file type.

How do I see file extensions in Big Sur Mac?

The simplest is to go to the Finder > Preferences menu, select the Advanced tab, and check the “Show all filename extensions” box. All your file extensions should now be visible – easy as pie. Conversely, if you want to hide your file extensions, just uncheck the box.

https://www.youtube.com/watch?v=YRkC06274DI